Graphene Nanoplatelet Integrated Thermally Drawn PVDF Triboelectric Nanocomposite Fibers for Extreme Environmental Conditions

Abstract

Triboelectric nanogenerators (TENGs) utilize the synergetic effect of triboelectrification and electrostatic induction to guide electrons through an external circuit, enabling low‐frequency mechanical and biomechanical energy harvesting and self‐powered sensing. Integrating 2D material with a high specific surface area into flexible ferroelectric polymers such as polyvinylidene difluoride (PVDF) has proven to be an efficient strategy to improve the performance of TENG devices. Scalable fabrication of graphene‐integrated PVDF nanocomposite fiber using thermal drawing process is demonstrated for the first time in this study. The open‐circuit voltage and short‐circuit current show 1.41 times and 1.48 times improvement with the integration of 5% graphene in the PVDF fibers, respectively. The TENG fabric shows a maximum power output of 32.14 µW at a matching load of 7 MΩ and a power density of 53.57 mW m−2. The fibers exhibit excellent stability in harsh environmental conditions such as alkaline medium, high/low temperature, multi‐washing cycle, and long‐time usage.

Ferroelectric Material in Triboelectric Nanogenerator

“…In a recent study, Sadeque and colleagues successfully fabricated graphene-integrated PVDF nanocomposite fibers using a hot stretching process and employed them in the production of TENGs [ 117 ]. The experimental findings illustrate that the addition of 5% graphene to PVDF fibers markedly improves their electrical performance, resulting in a respective increase of 1.41 times and 1.48 times in Voc and Isc.…”

“…Sadeque et al demonstrated the scalability in graphene-integrated PVDF nanocomposite fibers using a hot stretching technique, marking the first instance of such a demonstration [ 117 ]. The incorporation of 5% graphene into PVDF fibers resulted in a respective increase of 1.48 and 1.41 times in Isc and Voc ( Figure 15 a,b).…”

“…Reprinted with permission from Ref. [ 117 ] Copyright 2024 Wiley-VCH GmbH. ( f ) Changes in VOC and ISC in PDMS@ε = 4000 at different temperatures.…”

“…Reprinted with permission from Ref. [ 117 ] Copyright 2024 Wiley-VCH GmbH. ( g ) Diagram illustrating the process of charge creation in the PVDF-CuO TENG.…”

“…In recent research, Zhang and colleagues have devised an innovative method for fabricating high-dielectric materials that are resilient to fluctuations in environmental temperature, employing BaTiO3-based ceramic powders (ε = 4000). This pioneering material, In a recent study, Sadeque and colleagues successfully fabricated graphene-integrated PVDF nanocomposite fibers using a hot stretching process and employed them in the production of TENGs [117]. The experimental findings illustrate that the addition of 5% graphene to PVDF fibers markedly improves their electrical performance, resulting in a respective increase of 1.41 times and 1.48 times in Voc and Isc.…”